In the amusingly named Touchy Talk blog, Suzanne Ginsburg writes about touchscreen user interfaces, including a recent post about the tension between using gestures and “buttons” (i.e. on-screen control widgets).
“If you’d like to create an application with an immersive or skeuomorphic design, slapping buttons all over the user interface will certainly undermine your goals. Apps that fall into this category may include games, books, musical instruments, and more. Instead of standard GUI elements, these apps tend to combine gestures and interface metaphors (e.g., drag finger to turn virtual page). This doesn’t mean these applications have to be entirely devoid of buttons.”
Link: “Is the button dead?” (link removed due to malware in target site, touchytalk.com)